Pneumatic-tired wheel.



No. 815,430'. '..PATBNTED MAR. 2o, 1906.v

T. B. JBPFERY.

'PNEUMATIC TIRBD WHEEL. APPLIGATIQN FILEVD. Nov. 21.1904.

. la "my concernl Y citizenof the United States', residing at Keno'f'zsha, yin the county of, Kenosha and State of c; which the following lisa sp'eciication` refer# .'encebeinghadto the accompanying'drawinglshformmg a part. thereof` 1 i compressionl caused by the load;and fourth,

-In the drawings, Figure' 1 is a transverse Edetail Aside elevation'of aportion of such encompasses the inner element, both ele^securing-fthemtoithelatter at a belt or zone 'vidi'ng improved means for'holding the "same fellyin a Amanner permitting its read attachment anddetachment when deflate 'without causing insecurity or li ability' todisengage- 4`the tire inflat fa wheelhaving a woodrell l and having en-"sistingpreferably,of two elements, with an hol'l'owed in cross-section,i such yform being preferably produced merely by up'turning or rSTATESPATENT omen,

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j f THoMAs'B. .mr-Fahrt oF-Kenosha,fwisooNsiN. l "l fmal:umirrlcz-'TlFer-: i: wmsrrigyy Beit known that I, THoMAsB. Jerney, a

Wisconsin, have invented new and useful Improvements in Pneumatic-TiredWheels, of

e purpose .of this 'invention is to provide eel with the specificpurposes, rst, roadening the tread of such wheel uponv thereon; isecond, providing jsuch` tireecasing withmeans for guarding againstpuncture of from beingfolded abruptly so asto be cut or worn'overtheedge of the retaining rim or rims oftheellyeither. in inflation orin theadaptingthe tire-casing to be held'and proatf'its lateral margins 'in orto `the rim of the ment when inflated:

It consists' ofthe 'features of construction set out inthe claims. f

section, radial'with, respect to the wheel, of a portion ofthe ellyandrim and tire of the Wheel; embodying ny present invention, showingthe same fully. iniated. AFigf2 is a wheel.v Fig'. 3 is-a similarsection showing d, but compressed, as when the wheel is carrying'alo'ad.

` I haveshown this im roved tire secured'to compassmg such wood fe lycircumferential with respect toithe wheel a metal rim coninnerelement 2,whichis` dished'o'r exteriorly outwardlydlaring the lateral marginsWhere theyrc'verlhan'g .or may overhang the fell at oppositesides, andan outer element 3, w ich ments eing secured together and to the fellyby bolts ,orpscre'ws'e 4 Ple, binding the elements together and takinginto the `fielly for '.lateralpening of which is narrower than its A Ispeeicefiqn of Lettenrafena 1 Patented march ao, 1906;...'Appiicmon'nqamvemhe; 21,1904. serialrazaaees.

encompassing the 'Wheel substantiallyi A y way in the width of the fellyand saidt" efele ments.l The outer element?, is fiared" 1 -exv panded atits lateral margins away fromtheoo inner element to formbetweenthetwofatz; each sidra recess or cavity 5,"thev mouth ordimensionsback of such mouth. This narrowing fis. preferably causedmainly by the outward iiaring ofthe lateral margins o f vthe 'innerelement 2, causing itto be exteriorly disled, asstated; but the lateralmargins of' the outer element 3 may also. trend somewhat. inward towardthe axis of the wheel-for narvv rowing the mouth in comparisonwiththein-i ner portion vof the recess. The tiree'casing 6, designed to besecured to the laterally-reev cessed two-part rim described, has itslateral ,1 margins'reinforced or thickened, -as shown at .7`5 6a, saidreinforce or thickened portions being adapted to enter the -narrowedmouths'pffthe recesses 5 5, respectively. For retaining the margins ofthe tires in the'recesses'l'provide'- the annular retainers 7 7, whichencompass the wheel, being lodged in the seats' afforded for them by theupturned' or flaredmargins, 2St of the inner element 2 of the tire, saidretainers being of such size or thickness that 1 while they can beentered throughthe nar-- 855g rowed mouths of the recesses 5 after thetire.- I

back therein as far as the recess will 'permit they will not permit thewithdrawal of the enlarged and reinforced edges 6 of the casing gof,y

through said mouths-that is, the 4sum of the;

thickness of the enlarged or reinforced portion 6a and offthe. retainer7 Aisconsiderably more than the width of the mouth-so that any stressapplied to the tire-casing tending to withdrawits edge from the recesswill not avail, because the enlargement 6"', becoming engaged inward 'ofthe retainer 3, will draw the latter toward-the mouth at the same timethe enlarged edge is drawn theretoward,y :ed `and since the two cannotescape together neither can escape throu'h the mouthA insufficient forboth. A pre erred form of constructonfor' the retainer is lshown in thedrawings, in which it is represented as mader '1 o5 of comparativelyfine wire coiled in a s piral,

the spiral being wrapped labout the rim 1n the seat formed by the uturned or iattened margin f2, the two en s ofthe spiral`being'-,Apreferably joined u so as to make anendless retainer, which in t atevent may bereadily stretched on account of the spiral contrae-.

" inrig. 1.

' .hereinafter stated I prefer to 4o reinforces from side to side of thel v ..leather,

tion to pass over the outwardly-flared edge of the element 2, so that itmay lodge back of that edge in the seat described, to` which it willcontract and in which it will be held 5 snugly by such contraction,'blockadin the -mouth against the exit of the enlarge and reinforcedmargin oa of the casing. f

A tire inflated to circular cross-section, as

is customary, and alternately subjected to io and relieved fromflatteningat the. tread caused by the weight of the oad is exposed to anamount of back-and-forth bending at the sides which rapidly deterioratesit there, causing rupture at the sides even sooner than- .I 5 at thetreadfalthough the latter is exposed to much greater frietionalj wear.To reduce this, back-and-forth bending to a negligible amount, I aim toprevent the tii'e from becoming circular under inflation and to causethat even at the maximum inflation it shall be transversely oblong orflattened, as seen vForthat purpose I provide reinforces 8 8 within thecasing at opposite sides, such reinforces being of comparatively flexi-(ble rubber, vwhich is molded so as to be substantially or approximatelycrescent-shapedin cross-section, as seen in Fig.

1, the outer curve .of the crescent form bein conformed -l to thedimensions and'shape of t ie tire when 3Q ihfiated to the .degree orextent to which it is designed to be inflated for use and at which itsinflation is ydesigned to be limited. hese reinforces beingcementedfirmly to the casing 6, they practically determine its form un- 3 5 derinflation unless such inflation proceeds to a degree or tension tendingto tear the casing from the reinforce; but to prevent such rupture orseparation and for another purpose connect the two tire byv a ispreferably of extending entirely around the wheel at the inner side ofthe casing and having its lateral margins suitably held into orintertread-reinforc'e 9, which i 5 locked with the correspondingabutting mar- A gins of the reinforces S 8 and cemented thereto,respectively, at such interlocked margins as appearing at l0 10 in Fig.l. This reinforced) is also` preferably cemented orother-5ov`v'isepermanently secured to the tire-casing,

and when made of leather and compara- 'tively stiff it very-materiallytends tol prevent the distention of the tire beyond the flattened formshown in the drawings. The re- 5 5 inforce'lO, beside stiffening thetire-casing so as to assist in supporting the sides and preventing ritsinflation to a circular form in cross-section, has the further purposeand use of preventing'puncture ofthe casing or of l 6o an interior tube14, which may be employed within it forl inflation. Partly vas a meansof securing the reinforce 9 to the tire-casing, but more particularlyfor the purpose of giving the tire a firmer grip than it would otherwisehave upon the pavement, Vespeciallyi thickened ed when the latter is wetand slippery, I provide the outwardly concave or cupped tractiondisks 1111, which are riveted onto the outer surface of the casing, the rivetsl2 taking through both the casing and the leather reinforce 9, and soconstituting mean' of securing 1. In a vehicle-wheel, in combinationwith-l the felly, a rim encompassing the same having laterally-openingrecesses; a flexible tirecasing having its lateral edges enlarged andentered in said recesses respectively; "retainthe scopeof1 ing devicesalso entered in the recesses, said recesses being narrowed at theirmouths, and

the -sum of the thickness of theenla'rged4 edges of theca'sing and ofthe retaining de-4 vices in each recess being greater than the wid th ofthe mouth of the latter, said recesses being extended back from theirmouths with lcapacity to accommodate the thickened edges, the -latterbeing adapted to be passed back into the recesses to bring a thinnerportion of the casing to the mouth, the mouth being wide enough to admitthe retaining device uncompressed while accommodating said thinnerportion. L

2.. In a vehicle-wheel, in combination with the rim havinlaterally-opening recesses enlarged'back of their mouths, a flexibletirecasing having its edges thickened and entered in such recesses; aring encompassing the wheel in each recess between the mouth thereof andthe thickened edge of the casing therein, the thickness of such ringadded to ing more than the width of the mouth, said es beirig adapted tobe withthat'ofthe thickened. edge of thecasing bedrawn into tie recessesto bring a thinner portion of the casing to the mouth the mouth beingWide enough. to, admit the rin uiicompressed` while accommodating saithinner' portion.

3. 4In a vehicle-Wheel in combinatidii withu the rim havinglateralirecesses,Y a flexible tire- .casing having thickened orreinforced` edges entered in the recesses, and a rfetainermconsisting ofa spiral coil of wire lodged in-each recess, the axis of the coil beingcircumferential with respect to the wheel.

4. In a vehicle-Wheel in combination withthe rim havinglaterally-lopeningrecesses, a

` tire-casinghaving its edges thickened orvrelnforced and entered 1nsa1d`recesses;- a re i sngio tainer consisting of aspiral coil zof'Wirelodged in' there'cesses, the coil having its axis circumferentialwithrespect to' the Wheel and its diameter plus the thickness ofthetire-casing i back ofthe thickened or reinforcedfedge substantiallyequal tothe Width of the mouth. A

` 5. In a vehicle-Wheel in combination With the rim having laterally# oerung recesses which are enlarged back of t eir months; a

. flexible tire-casing having its edges thickened `and entered in saidrecesses and a yretainer 1 l consisting of aspiral coil off Wire lodgedin ,15

each recess With its axis circumferential with respect to thewheel, thesum of the'diameter of the spiral and the thickness of the thickenededge of the casing being more than the Width of the mouth.

, 6. In a vehicle-Whe'eha flexible tire-casing provided withreinforcements approximately crescent-shaped in cross f section atpositions which form'the sides-of the tire when it is on theWheelpermanently united tot-he casing .I`' l their exterior convex surfacecurved about a Within theA same, such reinforcements having radinsmaterially less than that of a circle to which the"l casing inflated themaximum cross-area would correspond for holdingy the casing flat oroblong in cross-section under inflation.'

7. In a vehicle-Wheel in combination with a rim having laterally-openingrecesses narrowed at the mouth; a flexible tire-casing 'having4thickened edgesentered in said re- 'cesses respectively7 and retainersin the recesses reventing the escape of such edges corresponding to theopposite sides of the tire Whenthe latter is in operative position ontheivheel, such reinforcements beingcon. formed in cross-section to across-sectionally flat or oblong form of the tire.

In testimony whereof I have herenntoset 'my hand, in the presence of twoWitnesses, at

Chicago, Illinois, this 22d day of October;

"i THOS. B. JEFFERY., In presence of FRED. G. FISCHER,

M. G. ADY.

